Other Parts Discussed in Thread: UCC21540
I am trying to simulate the driver circuit using UCC21540 IC. I am getting the following message in LTSpice and the errors are due to the UCC21540 model. The simulation is going on forever. Can anyone help is solving the issue?
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Circuit: *InverterWithDriver.asc
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}},{{vss}},{{vdd}})}"
Error: undefined symbol in: "if([v](a)>((vthresh)),((vss)),((vdd)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}}&v(b)>{{vthresh}},{{vdd}},{{vss}})}"
Error: undefined symbol in: "if([v](a)>((vthresh))&v(b)>((vthresh)),((vdd)),((vss)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}}&v(b)>{{vthresh}},{{vdd}},{{vss}})}"
Error: undefined symbol in: "if([v](a)>((vthresh))&v(b)>((vthresh)),((vdd)),((vss)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}}&v(b)>{{vthresh}},{{vdd}},{{vss}})}"
Error: undefined symbol in: "if([v](a)>((vthresh))&v(b)>((vthresh)),((vdd)),((vss)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}},{{vss}},{{vdd}})}"
Error: undefined symbol in: "if([v](a)>((vthresh)),((vss)),((vdd)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}},{{vss}},{{vdd}})}"
Error: undefined symbol in: "if([v](a)>((vthresh)),((vss)),((vdd)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}},{{vss}},{{vdd}})}"
Error: undefined symbol in: "if([v](a)>((vthresh)),((vss)),((vdd)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}}&v(b)>{{vthresh}},{{vdd}},{{vss}})}"
Error: undefined symbol in: "if([v](a)>((vthresh))&v(b)>((vthresh)),((vdd)),((vss)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}}&v(b)>{{vthresh}},{{vdd}},{{vss}})}"
Error: undefined symbol in: "if([v](a)>((vthresh))&v(b)>((vthresh)),((vdd)),((vss)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}}&v(b)>{{vthresh}},{{vdd}},{{vss}})}"
Error: undefined symbol in: "if([v](a)>((vthresh))&v(b)>((vthresh)),((vdd)),((vss)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}},{{vss}},{{vdd}})}"
Error: undefined symbol in: "if([v](a)>((vthresh)),((vss)),((vdd)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}},{{vss}},{{vdd}})}"
Error: undefined symbol in: "if([v](a)>((vthresh)),((vss)),((vdd)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}},{{vss}},{{vdd}})}"
Error: undefined symbol in: "if([v](a)>((vthresh)),((vss)),((vdd)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}}&v(b)>{{vthresh}},{{vdd}},{{vss}})}"
Error: undefined symbol in: "if([v](a)>((vthresh))&v(b)>((vthresh)),((vdd)),((vss)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}}&v(b)>{{vthresh}},{{vdd}},{{vss}})}"
Error: undefined symbol in: "if([v](a)>((vthresh))&v(b)>((vthresh)),((vdd)),((vss)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}}&v(b)>{{vthresh}},{{vdd}},{{vss}})}"
Error: undefined symbol in: "if([v](a)>((vthresh))&v(b)>((vthresh)),((vdd)),((vss)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}},{{vss}},{{vdd}})}"
Error: undefined symbol in: "if([v](a)>((vthresh)),((vss)),((vdd)))"
Questionable use of curly braces in "b§e_abmgate yint 0 v={if(v(a)>{{vthresh}},{{vss}},{{vdd}})}"
Error: undefined symbol in: "if([v](a)>((vthresh)),((vss)),((vdd)))"
Warning: Pscbe2 = 0 is not positive.
Warning: Pd = 0 is less than W.
Warning: Ps = 0 is less than W.
Warning: Pscbe2 = 0 is not positive.
Warning: Pd = 0 is less than W.
Warning: Ps = 0 is less than W.
Warning: Pscbe2 = 0 is not positive.
Warning: Pd = 0 is less than W.
Warning: Ps = 0 is less than W.
Warning: Pscbe2 = 0 is not positive.
Warning: Pd = 0 is less than W.
Warning: Ps = 0 is less than W.
Warning: Pscbe2 = 0 is not positive.
Warning: Pd = 0 is less than W.
Warning: Ps = 0 is less than W.
Warning: Pscbe2 = 0 is not positive.
Warning: Pd = 0 is less than W.
Warning: Ps = 0 is less than W.
Instance "m:u11:_m14:1": Length shorter than recommended for a level 1 MOSFET.
Instance "m:u11:_m13:1": Length shorter than recommended for a level 1 MOSFET.
Instance "m:u11:_m12:1": Length shorter than recommended for a level 1 MOSFET.
Instance "m:u11:_m15:1": Length shorter than recommended for a level 1 MOSFET.
Instance "m:u8:_m14:1": Length shorter than recommended for a level 1 MOSFET.
Instance "m:u8:_m13:1": Length shorter than recommended for a level 1 MOSFET.
Instance "m:u8:_m12:1": Length shorter than recommended for a level 1 MOSFET.
Instance "m:u8:_m15:1": Length shorter than recommended for a level 1 MOSFET.
Instance "m:u1:_m14:1": Length shorter than recommended for a level 1 MOSFET.
Instance "m:u1:_m13:1": Length shorter than recommended for a level 1 MOSFET.
Instance "m:u1:_m12:1": Length shorter than recommended for a level 1 MOSFET.
Instance "m:u1:_m15:1": Length shorter than recommended for a level 1 MOSFET.
Direct Newton iteration for .op point skipped.
Starting Gmin stepping
Increasing initial diagonal Gmin to 100
Increasing initial diagonal Gmin to 1000
Gmin = 1000
Gmin = 107.374
Gmin = 11.5292
Gmin = 1.23794
Singular matrix: Check nodes u16:mos:cshield2:n1 and v:u16:mos:cshield2:ref#branch
Iteration No. 9
Gmin = 0
Singular matrix: Check nodes u20:mos:cshield1:n1 and u20:mos:pbody:node1
Iteration No. 1
Gmin stepping failed
Starting source stepping with srcstepmethod=0
Source Step = 3.0303%
vernier = 0.25
Source Step = 0.0177557%
Source Step = 0.0473485%
Source Step = 0.0769413%
Source Step = 0.106534%
Source Step = 0.136127%
vernier = 0.00146484
Source Step = 0.173118%
Source Step = 0.217507%
Source Step = 0.261896%
Source Step = 0.306286%
Source Step = 0.350675%
vernier = 0.00219727
Source Step = 0.403942%
Source Step = 0.470526%
Source Step = 0.537109%
Source Step = 0.603693%
Source Step = 0.670277%
vernier = 0.0032959
Source Step = 0.746848%
Source Step = 0.846724%
Source Step = 0.9466%
Source Step = 1.04648%
Source Step = 1.14635%
vernier = 0.00494385
Source Step = 1.25621%
Source Step = 1.40603%
Source Step = 1.55584%
Source Step = 1.70566%
Source Step = 1.85547%
vernier = 0.00741577
Source Step = 2.01277%
Source Step = 2.23749%
Source Step = 2.46221%
Source Step = 2.68693%
Source Step = 2.91165%
Source Step = 3.13637%
vernier = 0.0111237
Source Step = 3.47346%
Source Step = 3.81054%
Source Step = 4.14762%
Source Step = 4.4847%
Source Step = 4.82178%
vernier = 0.0166855
Source Step = 5.31054%
Source Step = 5.81616%
Source Step = 6.32179%
Source Step = 6.82741%
Source Step = 7.33303%
vernier = 0.0250282
Source Step = 8.0409%
Source Step = 8.79933%
Source Step = 9.55776%
Source Step = 10.3162%
Source Step = 11.0746%
vernier = 0.0375423
Source Step = 12.0985%
Source Step = 13.2361%
Source Step = 14.3738%
Source Step = 15.5114%
Source Step = 16.6491%
vernier = 0.0563135
Source Step = 18.128%
Source Step = 19.8345%
Source Step = 21.541%
Source Step = 23.2474%
Source Step = 24.9539%
vernier = 0.0844703
Source Step = 27.087%
Source Step = 29.6467%
Source Step = 32.2064%
Source Step = 34.7661%
Source Step = 37.3258%
vernier = 0.126705
Source Step = 40.3975%
Source Step = 44.237%
Source Step = 48.0766%
Source Step = 51.9161%
Source Step = 54.7958%
Source Step = 55.1558%
Source Step = 55.2278%
Source Step = 55.2878%
Source Step = 55.3477%
Source Step = 55.4077%
Source Step = 55.4677%
vernier = 0.00296966
Source Step = 55.5457%
Source Step = 55.6357%
Source Step = 55.7257%
Source Step = 55.8157%
Source Step = 55.9057%
vernier = 0.00445449
Source Step = 56.0182%
Source Step = 56.1532%
Source Step = 56.2881%
Source Step = 56.4231%
Source Step = 56.5581%
vernier = 0.00668173
Source Step = 56.7201%
Source Step = 56.9226%
Source Step = 57.125%
Source Step = 57.3275%
Source Step = 57.53%
vernier = 0.0100226
Source Step = 57.7628%
Source Step = 58.0666%
Source Step = 58.3703%
Source Step = 58.674%
Source Step = 58.9777%
vernier = 0.0150339
Source Step = 59.3118%
Source Step = 59.7674%
Source Step = 60.2229%
Source Step = 60.6785%
Source Step = 61.1341%
vernier = 0.0225508
Source Step = 61.6124%
Source Step = 62.2958%
Source Step = 62.9791%
Source Step = 63.6625%
Source Step = 64.3459%
Source Step = 65.0292%
vernier = 0.0338263
Source Step = 66.0543%
Source Step = 67.0793%
Source Step = 68.1043%
Source Step = 69.1294%
Source Step = 70.1544%
vernier = 0.0507394
Source Step = 71.6407%
Source Step = 73.1783%
Source Step = 74.7158%
Source Step = 76.2534%
Source Step = 77.7909%
vernier = 0.0761091
Source Step = 79.9435%
Source Step = 82.2499%
Source Step = 84.5562%
Source Step = 86.8625%
Source Step = 89.1689%
vernier = 0.114164
Source Step = 91.4176%
Source Step = 91.704%
Source Step = 91.7581%
Source Step = 91.8122%
Source Step = 91.8662%
Source Step = 91.9203%
Source Step = 91.9743%
Source Step = 92.0284%
Source Step = 92.0824%
Source Step = 92.1365%
Source Step = 92.1905%
Source Step = 92.2446%
Source Step = 92.2986%
Source Step = 92.3527%
Source Step = 92.4068%
Source Step = 92.4608%
Source Step = 92.5149%
Source Step = 92.5689%
Source Step = 92.623%
Source Step = 92.677%
Source Step = 92.7311%
Source Step = 92.7851%
Source Step = 92.8392%
Source Step = 92.8932%
Source Step = 92.9473%
Source Step = 93.0014%
Source Step = 93.0554%
Source Step = 93.1095%
Source Step = 93.1635%
Source Step = 93.2176%
Source Step = 93.2716%
Source Step = 93.3257%
Source Step = 93.3797%
Source Step = 93.4338%
Source Step = 93.4878%
Source Step = 93.5419%
Source Step = 93.596%
Source Step = 93.65%
Source Step = 93.7041%
Source Step = 93.7581%
Source Step = 93.8122%
Source Step = 93.8662%
Source Step = 93.9203%
Source Step = 93.9743%
Source Step = 94.0284%
Source Step = 94.0824%
Source Step = 94.1365%
Source Step = 94.1906%
Source Step = 94.2446%
Source Step = 94.2987%
Source Step = 94.3527%
Source Step = 94.4068%
Source Step = 94.4608%
Source Step = 94.5149%
Source Step = 94.5689%
Source Step = 94.623%
Source Step = 94.6771%
Source Step = 94.7311%
Source Step = 94.7852%
Source Step = 94.8392%
Source Step = 94.8933%
Source Step = 94.9473%
Source Step = 95.0014%
Source Step = 95.0554%
Source Step = 95.1095%
Source Step = 95.1635%
Source Step = 95.2176%
Source Step = 95.2717%
Source Step = 95.3257%
Source Step = 95.3798%
Source Step = 95.4338%
Source Step = 95.4879%
Source Step = 95.5419%
Source Step = 95.596%
Source Step = 95.65%
Source Step = 95.7041%
Source Step = 95.7581%
Source Step = 95.8122%
Source Step = 95.8663%
Trouble finding operating point....skipping operating point for Transient analysis.
Date: Mon Nov 21 19:38:30 2022
Total elapsed time: 2409.816 seconds.
tnom = 27
temp = 27
method = modified trap
totiter = 92389
traniter = 0
tranpoints = 1
accept = 1
rejected = 0
matrix size = 1154
fillins = 11794
solver = Normal
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